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GB/T 2423.57-2008 English PDF (GBT2423.57-2008)

GB/T 2423.57-2008 English PDF (GBT2423.57-2008)

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GB/T 2423.57-2008: Environmental testing for electric and electronic products - Part 2: Tests - Test Ei: Shock - Shock response spectrum synthesis

GB/T 2423.57-2008
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.040
K 04
GB/T 2423.57-2008 / IEC 60068-2-81:2003
Environmental testing for electric and electronic products -
Part 2: Tests - Test Ei: Shock - Shock response spectrum
synthesis
应谱合成
(IEC 60068-2-81:2003, IDT)
ISSUED ON: MAY 19, 2008
IMPLEMENTED ON: JANUARY 01, 2009
Issued by: General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions... 6
4 Requirements for test apparatus ... 12
5 Requirements for testing ... 14
6 Severities ... 16
7 Preconditioning ... 18
8 Initial measurements ... 19
9 Testing ... 19
10 Intermediate measurements ... 23
11 Recovery ... 23
12 Final measurements ... 23
13 Information to be given in the relevant specification ... 24
14 Information to be given in the test report ... 24
Annex A (informative) Test time history - General background information ... 29 Annex B (informative) Parameters for use in synthesizing a test time-history ... 33 Annex C (informative) How to synthesize a test time-history ... 38
Annex D (informative) Recommended frequency ranges for test SRS ... 43 Bibliography... 44
Foreword
GB/T 2423 “Environmental testing for electric and electronic products - Part 2: Tests” is divided into several parts according to the test methods.
This Part is Part 57 of GB/T 2423.
This part is identical to IEC 60068-2-81:2003 (Ed. 1.0) “Environmental testing - Part 2-81: Tests - Test Ei: Shock - Shock response spectrum synthesis”.
For convenience of use, this Part makes the following editorial changes: a) Change the word “this part of IEC 60068” to “this part of GB/T 2423” or “this part”;
b) Use the decimal point “.” to replace the comma “,” as a decimal point; c) Delete the foreword of the international standard;
d) Change this part to the current name, in order to be consistent with the names of other parts of the existing GB/T 2423.
Some of the normative documents cited in this part have not yet been converted into equivalent national standards, and are still listed with IEC/ISO numbers when these normative documents are cited.
Appendix A, Appendix B, Appendix C and Appendix D of this part are informative annexes.
This Part was proposed and managed by the National Technical Committee 8 on Environmental Conditions of Electric and Electronic Products and Environmental Test of Standardization Administration of China (SAC/TV 8).
The drafting organizations of this Part: Shanghai Institute of Quality Inspection and Technical Research, The Fifth Institute of Electronics, Ministry of Information Industry, Zhongyuan Micro Instrument Co., Ltd., Shanghai Institute of Process Automation Instrumentation, Guangzhou University, Beijing University of Aeronautics and Astronautics, Shanghai Spaceflight Precision Machinery Institute, Shanghai Aerospace 808.
The drafters of this Part: Lu Zhaoming, Xie He, Wang Yongqiang, Shi Xiaowen, Xu Zhonggen, Li Chuanri, Hu Weixin, Yang Chuan, Cao Xuefeng, Wang Qunjian. Environmental testing for electric and electronic products -
Part 2: Tests - Test Ei: Shock - Shock response spectrum
synthesis
1 Scope
This part of GB/T 2423 specifies tests using a synthesized shock response spectrum (SRS). It is intended for general application to specimens when simulation of transient excitation of a complex nature is required.
2 Normative references
The terms in the following documents become the terms of this Part by reference to this part of GB/T 2423. For dated references, all subsequent amendments (not including errata content) or revisions do not apply to this Part. However, parties to agreements that are based on this Part are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this Part. GB/T 2421-1999, Environmental testing for electric and electronic products - Part 1: General and guidance (idt IEC 60068-1:1988)
GB/T 2423.10-2008, Environmental testing for electric and electronic products - Part 2: Tests methods - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995, IDT) GB/T 2423.5-1995, Environmental testing for electric and electronic products - Part 2: Test methods - Test Ea and guidance: Shock (idt IEC 60068-2-27:1987) GB/T 2423.43-2008, Environmental testing for electric and electronic products - Part 2: Test methods - Mounting of specimens for vibration impact and similar dynamic tests (IEC 60068-2-47:1999, IDT)
GB/T 2423.56-2006, Environmental testing for electric and electronic products - Part 2: Test methods - Test Fh: Vibration, broad-band random (digital control) and guidance (IEC 60068-2-64:1993, IDT)
IEC 60068-2-57:1999, Environmental testing - Part 2: Tests - Test Ff: Vibration - Time-history method
ISO 266:1997, Acoustics - Preferred frequencies
ISO2041:1990, Vibration and shock - Vocabulary

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